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DEBIAN-CVE-2018-20102

DEBIAN-CVE-2018-20102 PUBLISHED CVSS 7.5 HIGH

An out-of-bounds read in dns_validate_dns_response in dns.c was discovered in HAProxy through 1.8.14. Due to a missing check when validating DNS responses, remote attackers might be able read the 16 bytes corresponding to an AAAA record from the non-initialized part of the buffer, possibly accessing anything that was left on the stack, or even past the end of the 8193-byte buffer, depending on the value of accepted_payload_size.

Risk Scores

CVSS v3.0
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products

VendorProductVersions
Debian:13haproxy0, 0, 0
Debian:14haproxy0, 0, 0
Debian:12haproxy0, 0, 0
Debian:11haproxy0, 0, 0

Timeline

  • Dec 12, 2018 CVE Published
  • Apr 28, 2026 CVE Updated
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